Thanks guys. I'll look into this and tell you if I come up with anything.

-R


On Saturday, March 15, 2014, Jeff Newmiller <jdnewmil@dcn.davis.ca.us>
wrote:

> Comparing with an unspecified benchmark makes answering this too hard.
> Following instructions in the Posting Guide will lead to more accurate Q
> and A.
>
> Note that you may not need to compile if you have not as yet followed the
> recommendations: http://cran.r-project.org/bin/linux/ubuntu/README. There
> are apparently compile-time options that can obtain noticeable improvements
> for certain classes of problems, but if you and your friend are both using
> standard installs that seems unlikely to explain the difference. I have not
> needed a custom compile (yet?).
> ---------------------------------------------------------------------------
> Jeff Newmiller                        The     .....       .....  Go Live...
> DCN:<jdnewmil@dcn.davis.ca.us <javascript:;>>        Basics: ##.#.
> ##.#.  Live Go...
>                                       Live:   OO#.. Dead: OO#..  Playing
> Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
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> ---------------------------------------------------------------------------
> Sent from my phone. Please excuse my brevity.
>
> On March 15, 2014 3:46:57 AM PDT, Augusto Cesar <augusto.cesar@gmail.com<javascript:;>>
> wrote:
> >My guess is that maybe the default Ubuntu binaries aren't compiled
> >with MKL (Math Kernel Library) support and thus with no
> >multithreading.
> >
> >I would suggest doing a quick research on how to re-compile R with MKL
> >support and maybe you'll be good to go.
> >
> >On Fri, Mar 14, 2014 at 9:45 PM, Russell Bainer <russ.bainer@gmail.com<javascript:;>
> >
> >wrote:
> >> Hi All,
> >>
> >> I've run across an odd phenomenon and I am wondering if someone might
> >be
> >> able to provide insight as to what is going on. I'm running some R
> >code
> >> that was provided by a collaborator, who is not a very experienced R
> >> programmer (e.g., the code is functional but not very efficient).
> >When I
> >> run it from the terminal or command line everything executes, albeit
> >very
> >> slowly- the logfile suggests that the program is about 5% done after
> >> running over last weekend. Top indicates that it is maxing out one of
> >my
> >> CPUs and chewing up a lot of memory, which I expect.
> >>
> >>  The strange thing is that my collaborator insists that the code
> >executes
> >> on the order of minutes on his 2012 macbook pro with 8G of memory. I
> >am
> >> running it with ubuntu 12.04 on a dual-core i7 with 32G, and it's
> >slow as
> >> molasses. That suggests a configuration issue of some kind with R
> >that I
> >> might not be aware of (I am more experienced in R and usually don't
> >write
> >> code that requires resources like that). I have played with my
> >swappiness
> >> and the effect seems to be minimal. Can anyone suggest something else
> >that
> >> could be going on? I have considered trying to run it directly on a
> >unix
> >> server, but the code has a lot of third-party dependencies that would
> >be a
> >> bit of work to set up for simple troubleshooting. And naturally I'd
> >prefer
> >> that R be configured correctly in the event that I need to locally
> >run
> >> something more intense in the future.
> >>
> >>  Thanks in advance for any advice you can give. This message has been
> >> cross-posted omn the ubuntu forums.
> >>
> >> -R
> >>
> >>         [[alternative HTML version deleted]]
> >>
> >> ______________________________________________
> >> R-help@r-project.org <javascript:;> mailing list
> >> https://stat.ethz.ch/mailman/listinfo/r-help
> >> PLEASE do read the posting guide
> >http://www.R-project.org/posting-guide.html
> >> and provide commented, minimal, self-contained, reproducible code.
>
>

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